Abstract: The density of a fluid is determined using a vibratory resonant densitometer in an environment. The densitometer includes a tubular sample cavity and other densitometer parts. The method includes measuring a plurality of parameters characterizing the environment. The method further includes adjusting a model of the sample cavity using the measured parameters. The method further includes receiving a sample fluid into the sample cavity. The method further includes vibrating the sample cavity to obtain a vibration signal. The method further includes calculating the density of the sample fluid using the model and the vibration signal.

Abstract: According to the invention, a time synchronization of phase between measurement devices that do not share a same clock for their respective sampling of the signals is carried out by a time tagging of samples of the signals in time blocks followed by an adjustment of the phase values of components of interest of the signals in the regrouped time blocks so that the values refer to common time references between the measurement devices. The tagging is carried out with a synchronization signal available to the measurement devices, completed with count values provided by a counter operated by a reference clock for each measurement device.

Abstract: The fabrication of the wafer may be analyzed starting from when the wafer is in a partially fabricated state. The value of a specified performance parameter may be determined at a plurality of locations on an active area of a die of the wafer. The specified performance parameter is known to be indicative of a particular fabrication process in the fabrication. Evaluation information may then be obtained based on a variance of the value of the performance parameter at the plurality of locations. This may be done without affecting a usability of a chip that is created from the die. The evaluation information may be used to evaluate how one or more processes that include the particular fabrication process that was indicated by the performance parameter value was performed.

Abstract: A pedometer has first and second signal generators mounted along the inner margin of a first shoe and separated by a fixed distance. A sensor and transmitter assembly is mounted along the inner margin of a second shoe. The sensor and transmitter assembly includes a sensor, a microcontroller unit and a wireless transmitter. A pair of impulses is received by the microcontroller unit each time the shoes pass in close proximity to each other. The microcontroller unit generates various pedestrian performance data based on the impulses. The pedestrian performance data is wirelessly transmitted to a display unit carried by the pedestrian.

Abstract: A method and system for displaying waveforms generated from input signals received at a common input channel (CIC) of a data acquisition (DAQ) device. An input signal received at the CIC can be displayed as a present-time waveform, and while the input signal is displayed as a present-time waveform, the input signal can be tagged for displaying the input signal as a historical waveform for the CIC. After receiving another input signal at the CIC, a display can be refreshed to display, simultaneously, the historical waveform for the CIC and the other input signal as another present-time waveform for the CIC. The DAQ device can tag the displayed input signal in response to a user pushing a selector device on the DAQ device. The display can display other present-time waveforms with the historical waveform to allow a user to compare input signals received at the CIC.

Abstract: According to one embodiment, an RFID tag issuing apparatus includes a communication instructing unit, a search unit, and a misalignment amount detecting unit. The communication instructing unit instructs a reader-writer unit to communicate with the RFID tag at a reference position that is reached when the label is carried by a predetermined amount in a predetermined direction after the specific position on the label is detected by a label position detecting unit. The search unit repeats a carrying of the label and a communication instruction to the reader-writer unit when communication cannot be established with the RFID tag, and thus searches for a communication-available range with the RFID tag. The misalignment amount detecting unit detects an amount of carrying of the label to reach the communication-available range from the reference position, as a misalignment amount of the RFID tag.

Abstract: Provided are a system and method for identifying planned markers while drilling a borehole. In one example, the method includes obtaining a plan containing planned markers that each corresponds to a baseline marker from an existing well. Each of the baseline markers corresponds to a waveform from a log file obtained from the existing well and is associated with a waveform representation of the corresponding waveform. Each of the planned markers is associated with an estimated true vertical depth (TVD) value. A second log file corresponding to the borehole is obtained that contains waveforms representing formation information detected within the borehole. The second log file is scanned for a planned marker based on the estimated TVD value and the waveform representation of the baseline marker corresponding to the planned marker. At least one match may be identified and reported for the planned marker.

Abstract: Phase sensitive X-ray imaging methods provide substantially increased contrast over conventional absorption based imaging, and therefore new and otherwise inaccessible information. The use of gratings as optical elements in hard X-ray phase imaging overcomes some of the problems impairing the wider use of phase contrast in X-ray radiography and tomography. To separate the phase information from other contributions detected with a grating interferometer, a phase-stepping approach has been considered, which implies the acquisition of multiple radiographic projections. Here, an innovative, highly sensitive X-ray tomographic phase contrast imaging approach is presented based on grating interferometry, which extracts the phase contrast signal without the need of phase stepping. Compared to the existing phase step approach, the main advantage of this new method dubbed “reverse projection” is the significantly reduced delivered dose, without degradation of the image quality.

Abstract: Methods, devices and system are provided. One method includes capturing activity data associated with activity of a user via a device. The activity data is captured over time, and the activity data is quantifiable by a plurality of metrics. The method includes storing the activity data in storage of the device and, from time to time, connecting the device with a computing device over a wireless communication link. The method defines using a first transfer rate for transferring activity data captured and stored over a period of time. The first transfer rate is used following startup of an activity tracking application on the computing device The method also defines using a second transfer rate for transferring activity data from the device to the computing device for display of the activity data in substantial-real time on the computing device.

Abstract: A method dresses a polishing member with a diamond dresser having diamond particles arranged on a surface thereof. The method includes determining dressing conditions by performing a simulation of a distribution of a sliding distance of the diamond dresser on a surface of the polishing member, and dressing the polishing member with the diamond dresser under the determined dressing conditions. The simulation includes calculating the sliding distance corrected in accordance with a depth of the diamond particles thrusting into the polishing member.

Abstract: Readings of a characteristic of the yarn along the longitudinal direction of the yarn are detected. Values of a yarn parameter are determined from the readings. An event field contains a quadrant of a two-dimensional Cartesian coordinate system, whose abscissa defines an extension of yarn parameter values in the longitudinal direction and whose ordinate defines a deviation of the yarn parameter from a desired value. Densities of events in the event field are determined from the values of the yarn parameter and their extensions in the longitudinal direction. A yarn body is represented as an area in the event field. The area on the one hand is delimited by the abscissa, on the other hand by the ordinate and further by a line in the event field that substantially follows a constant event density. The representation of the yarn body permits a clearing limit to be defined in a rapid and rational manner.

Abstract: Methods, systems and devices are provided for displaying monitored activity data in substantial real-time on a screen of a computing device. One example method includes capturing motion data associated with activity of a user via an activity tracking device. The motion data is quantified into a plurality of metrics associated with the activity of the user. The method includes connecting the activity tracking device with a computing device over a wireless data connection, and sending motion data from the activity tracking device to the computing device for display of one or more of the plurality of metrics on a graphical user interface of the computing device. At least one of the plurality of metrics displayed on the graphical user interface is shown to change in substantial real-time based on the motion data.

Abstract: A modular apparatus for acquiring biometric data may include circuitry operative to receive an input signal indicative of a biometric condition, the circuitry being configured to process the input signal according to a transfer function thereof and to provide a corresponding processed input signal. A controller is configured to provide at least one control signal to the circuitry to programmatically modify the transfer function of the modular system to facilitate acquisition of the biometric data.

Abstract: A system for locating and tracking an object is provided. The system includes a measuring device configured to determine a property of a paving-related material, a locating device configured to determine a location of the measuring device, a tracking system configured to store tracking information associated with the measuring device and one or more properties determined by the measuring device, and a communications system configured to transfer, to a remote device, the location of the measuring device and the tracking information associated with the measuring device.

Abstract: Example embodiments relate to a measurement method of measuring lots with improved process efficiency. The measurement method may include calculating a measurement capability (indicating a degree to which members to be measured may be processed per unit time in a measurement device); allocating the measurement capability according to a processing device and a processing condition; and calculating a measurement ratio of the lots processed by the processing device and the processing condition.

Abstract: In order to set an inspection area in an inspection apparatus for inspecting a board, a plurality of measurement areas are set on a board, and then reference data and measurement data of at least one adjacent measurement area that is adjacent to a target measurement area for inspecting a measurement target, among the measurement areas, are acquired. Thereafter, at least one feature object is extracted from the adjacent measurement area. Then, a distortion degree is acquired by comparing reference data and measurement data corresponding to the feature object with each other, and thereafter the distortion degree is compensated for, to set an inspection area in the target measurement area. Thus, a conversion relation between the reference data and the measurement data may be correctly acquired, and an inspection area, in which distortion is compensated for, may be correctly set.

Abstract: A multifunctional syntactic foam including a matrix material and hollow particles, where a first and second material property of the syntactic foam are tailored on the basis of the wall thickness and volume fraction of the hollow particles.

Abstract: An oxygen sensing system including an oxygen sensor, a microprocessor and one or more additional sensors for sensing parameters associated with the environment or with the oxygen sensor, accounts for one or more sensed conditions when calculating oxygen levels. The one or more sensors may sense conditions associated with environmental effects or effects of use that may cause the oxygen sensor to degrade over usage or over time. A baseline amplification and measurement circuit coupled to the oxygen sensor may enable the sensor to operate less frequently or for shorter periods of time, thereby increasing the life span, calibration hold time of the sensor, and reducing power requirements.

Abstract: A method for matching precursor ions to product ions generated in a chromatography—mass spectrometry experiment comprises: choosing a time window defining a region of interest for precursor ion data and product ion data generated by the experiment; constructing a plurality of extracted ion chromatograms (XICs) for the precursor ion data and the product ion data within the region of interest; automatically detecting and characterizing chromatogram peaks within each XIC and automatically generating synthetic analytical fit peaks thereof; discarding a subset of the synthetic analytical peaks which do not satisfy noise reduction rules; performing a respective cross-correlation score calculation between each pair of synthetic analytical fit peaks; and recognizing matches between precursor ions and product ions based on the cross correlation scores.

Abstract: In a method for controlling at least one door of a vehicle, a movement of a mobile identification signal generator, assigned to the vehicle, relative to the vehicle is sensed as a function of time. A future position of the mobile identification signal generator is estimated at a future time based on the position, the speed of movement and the direction of movement of the mobile identification signal generator at the current time, and furthermore an unlocking condition is detected if the future position of the mobile identification signal generator is within a predetermined range. Finally, the at least one door is unlocked and/or opened based on the unlocking condition. As a result of the estimation of the position of an identification signal generator with respect to a next position measuring point, the reaction time and the susceptibility to faults of an access arrangement can be improved.

Abstract: A method for recording pulse signals which allows the reconstruction of a time reference. The time of every pulse signal event can be determined by counting sampling result bits preceding the respective sampling result bit using the known sampling frequency. For this purpose, every period of the sampling frequency is associated with a bit representing the respective sampling result and the sampling result bits are stored one by one and per channel in data blocks. The sampling frequency is preferably higher than a pixel clock, a sampling result bit associated with a flank of the pixel clock being marked. The pixel clock can thus be synchronized with the individual events exactly per sampling period. The invention further relates to the field of fluorescence correlation spectroscopy using confocal microscopes or laser scanning microscopes.

Abstract: The present invention includes a guided microwave spectroscopy system (1) that eliminates the need for an automatic gain control feature by providing multiple signal processing paths having differing fixed voltage gains. An emitted signal which exits a test chamber (2) containing a material under test is simultaneously amplified by at least a first fixed gain amplifier (4) and a second fixed gain amplifier (7). The output signal of each amplifier is separately digitized and then normalized for further digital signal processing by a computer (13) in order to determine parameters of the material under test which may have variable microwave radiation characteristics that are a function of the frequency of the signal emitted into the test chamber. During the signal processing step a system clock (121) causes the computer to sample only an integral number of complete output signal cycles.

Abstract: The invention relates to a system and method of analysing material as well as to an apparatus for analysing material, particularly, though not necessarily exclusively, biomaterial. The invention entails receiving holographic intensity data comprising at least a holographic intensity pattern associated with a sample of the material of interest and processing, by applying image processing algorithms and techniques, the received holographic intensity data at least to perform one or both steps of detecting and identifying at least one object of interest in the sample thereby at least to generate a suitable output.

Abstract: In the measurement of properties of a wafer substrate, such as Critical Dimension or overlay a sampling plan is produced (2506) defined for measuring a property of a substrate, wherein the sampling plan comprises a plurality of sub-sampling plans. The sampling plan may be constrained to a predetermined fixed number of measurement points and is used (2508) to control an inspection apparatus to perform a plurality of measurements of the property of a plurality of substrates using different sub-sampling plans for respective substrates, optionally, the results are stacked (2510) to at least partially recompose the measurement results according to the sample plan.

Abstract: System and method for extending programmable device functionality while preserving functionality of the device driver and driver IP. User input may be received specifying functionality of custom IP for a programmable measurement device with standard driver IP. The custom IP may be generated accordingly, and may be deployable to the programmable measurement device. During operation the custom IP may communicate directly with the standard driver IP and may provide custom functionality of the programmable measurement device while preserving functionality of the standard driver IP on the programmable measurement device and the standard device driver.

Abstract: A apparatus includes a function of automatically arranging various sensors, such as temperature, humidity, illumination, presence, and CO2, and various meters, such a power and gas, in the rooms, floors, and buildings of a building model based on BIM by arranging the various sensors according to an optimum arrangement, an installation cost-based arrangement, or a user-based arrangement and arranging the various meters based on an optimum arrangement and of displaying the arranging sensors and meters in a 3-D space, a function of displaying the arrangement coordinates of various sensors and various meters, and a function of calculating and displaying the number of arranged sensors and meters and a cost for the arranged sensors and meters.

Abstract: An apparatus for evaluating layers, including interlayer gaps, in a multi-layer structure; the multi-layer structure presenting a plurality of edges generally aligned athwart an axis; the apparatus includes: (a) a sensing unit configured for sensing at least one parameter; (b) a positioning unit coupled with the sensing unit; the positioning unit being configured to effect moving the sensing unit generally along the axis; and (c) a control unit coupled with at least one of the positioning unit and the sensing unit. The control unit provides an electrical signal to the sensing unit. The control unit monitors changes in the at least one parameter as the sensing unit moves past the plurality of edges. The control unit employs the changes in the at least one parameter to effect the evaluating.

Abstract: Sensors, systems, and methods for measuring fluid perturbation are provided. One system includes a sensor module, a data management system, and a control system. In operation, data representing fluid is generated and recorded on the sensor module. During generating and recording, the sensor module is preferably partially submerged in a conductive fluid. The sensor module transmits the data representing fluid to the data management system in response to receiving data representing a record request from the data management system. Next, the data management system operates on the received data representing fluid to convert the data representing fluid into data representing fluid perturbation. Then the data management system stores the data representing fluid perturbation and transmits the data representing fluid perturbation to the control system. The control system stores the data representing fluid perturbation and displays the data representing fluid perturbation.

Abstract: There is disclosed a method for determining the heating value of a fuel, the fuel comprising at least one hydrocarbon including a first hydrocarbon present in the highest molar concentration, the method comprising: measuring the stoichiometric oxidation molar flow ratio of the fuel; determining the ideal molar heating value (HVm,i) from the measured stoichiometric oxidation molar flow ratio; measuring the molar concentration of the first hydrocarbon; and determining the real molar heating value (HVm,r) from the ideal molar heating value (HVm,i) and the molar concentration of the first hydrocarbon. An apparatus is also disclosed.

Abstract: The invention relates to a method for visualizing and/or quantifying structures, in particular structures within an object and/or subject, preferably within the human body. The method according to the invention is in particular characterized by the automatic or semiautomatic calculation of a decomposition of the structure into components as well as by at least one of the following steps: (i) the optionally sole visualization of one or more of these components, in particular in case of a superimposed representation of the structure for two or more points in time, and/or (ii) the representation of different components in different colours/shades/patterns, and/or (iii) the calculation of quantitative parameters describing the structure and/or its components, separately for the individual components, and/or (iv) the calculation of parameters measuring the interrelationship between specific components.

Abstract: A system and method for soft-field reconstruction are provided. One method includes obtaining applied input and measured output information for an excited object using a plurality of transducers and forming an admittance matrix based on the applied input and measured output information. The method also includes determining a plurality of moments using the admittance matrix and calculating a property distribution of the excited object using the plurality of moments.

Abstract: A data logging device tracks the operation of a vehicle or driver actions. The device includes a storage device, which may be removable or portable, having a first memory portion that may be read from and may be written to in a vehicle and a second memory portion that may be read from and may be written to in the vehicle. The second memory portion may retain data attributes associated with the data stored in the first removable storage device. A processor reads data from an automotive bus that transfers data from vehicle sensors to other automotive components. The processor writes data to the first memory portion and the second memory portion that reflect a level of risk or safety. A communication device links the storage device to a network of computers. The communication device may be accessible through software that allows a user to access files.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining a presumed activity associated with a mobile device. A plurality of sensor values detected by one or more sensors onboard the mobile device is received over a period of time. A plurality of derived values is calculated from the plurality of sensor values. The derived values are selectively combined to generate one or more abstract values. A presumed activity is identified from a plurality of possible activities based on a level of similarity between the one or more abstract values and expected values of each of the plurality of possible activities that correspond to the one or more abstract values.

Abstract: Systems and methods of identifying electrical sources of audible acoustic noise may involve identifying first frequency content of a circuit board, wherein the first frequency content is associated with at least one of acoustic noise and a vibration of the circuit board. Second frequency content of an electrical signal associated with the circuit board may also be identified. In addition, a coherence between the first frequency content and the second frequency content may be determined.

Abstract: It is disclosed to estimate a state vector of an object, wherein the state vector comprises a state variable related to a position or an orientation of the object, based on at least one of a probability density function of the state vector truncated under consideration of a constraint for the state variable, wherein the constraint is derived from a map, and properties of the truncated probability density function.

Abstract: Provided are methods of measuring electrode density and electrode porosity using X-ray diffraction. According to the methods of measuring electrode density and porosity of the present invention, electrode density and porosity may be efficiently measured by a non-destructive method using X-ray diffraction.

Abstract: A wireless communication device (200) is disclosed. It can include: an electronic device (210) including a display (240); a wearable device (242) including a first orientation detector (244) configured to detect a suitable display viewing orientation; and a controller (220) including a power saving module (290) coupled to the electronic device (210), the controller (220) configured to control the operations of at least the display (240) in response to a suitable orientation detection. Advantageously, the wireless communication device (200) can provides a simple, portable, compact and robust power savings feature that can actuate a display when properly orientated for viewing by a user and not actuate the display when not suitably oriented.

Abstract: A method for monitoring the function of a sensor module including sensor which generates a measurement signal for a physical quantity to be determined and applies the measurement signal to an output terminal in an unchanged form or in processed form. In addition, a test signal is generated whose spectrum lies outside the spectrum of the measurement signal. The test signal is supplied at a place in the sensor from which it reaches the output terminal in unchanged form or in processed form only in the case of a functional sensor. An output signal present at the output terminal is compared with the test signal and a diagnosis signal is generated, which indicates whether the test signal is present at the output terminal. The test signal is filtered out of the output signal and the remaining signal is applied as the measurement signal at an output of the sensor module.

Abstract: An apparatus and method for identifying a human being and an animal are disclosed to properly identifying whether or not a target is a human being or an animal. The apparatus for distinguishing between a human being and an animal includes: a target stimulation unit generating a stimulation signals for selectively stimulating the senses of a human being and an animal and providing the generated stimulation signal to a target; and a target identifying unit detecting the reaction of a target to the simulation signal to identify whether or not the target is a human being or an animal.

Abstract: A device is described for generating a control signal for controlling a passenger protection arrangement of a motor vehicle, having a first acceleration sensor for generating a first acceleration signal, having a second acceleration sensor for generating a second acceleration signal, having a first structure-borne noise sensor for generating a first structure-borne noise signal, having a second structure-borne noise sensor for generating a second structure-borne noise signal, and having an evaluation circuit, the evaluation circuit (being configured for generating a combination signal from the first structure-borne noise signal and the second structure-borne noise signal, the evaluation circuit being configured for generating the control signal as a function of the first acceleration signal, the second acceleration signal and the combination signal.

Abstract: A method for determining a load exerted on a tire, fitted on a vehicle, during running of the vehicle on a rolling surface, is disclosed. The method includes acquiring a first signal comprising a first signal portion representative of a radial deformation; measuring an amplitude of the radial deformation in the first signal portion; estimating a rotation speed of the tire corresponding to the radial deformation; estimating an inflation pressure of the tire corresponding to the radial deformation; and deriving the load exerted on the tire from the amplitude, the rotation speed, and the inflation pressure. The first signal portion is representative of the radial deformation to which a first tread area portion of the tire is subjected during passage of the first tread area portion through a contact region between the tire and the rolling surface. A system for determining the load exerted on the tire is also disclosed.

Abstract: The present invention provides a method for calculating a destruction rate of refrigerant by establishing a calibration line using standard refrigerant gases and measuring the amount of refrigerant remaining in exhaust gas discharged after destruction of waste refrigerant. For this purpose, the present invention provides a method for calculating a destruction rate of refrigerant, the method including: establishing a calibration line using standard refrigerant gas samples whose concentrations are known; sampling exhaust gas finally discharged after decomposition of waste refrigerant; measuring the concentration of refrigerant remaining in the sampled exhaust gas; and calculating the amount of undestroyed refrigerant using the concentration of refrigerant remaining in the exhaust gas, the amount of exhaust gas discharged, and the known density of refrigerant.

Abstract: A method and apparatus for storing data regarding parameter values by making a series of measurements of parameter values at times separated by predetermined time intervals, processing the series of measurements of parameter values made at predetermined time intervals to identify events at different times, generating a further series of measurements of parameter values at each of said different times, and storing each of said further series of measurements of parameter values in association with said respective different time.

Abstract: A method is provided of estimating a road grade of a current driven road. A nominal value of a vehicle operating parameter is measured during a nominal vehicle operating condition. The vehicle operating parameter is related to a vehicle thrust power. The nominal value of the vehicle operating condition is comprised of a nominal acceleration corresponding to the nominal value when the vehicle is driven on a substantially non-inclined road. The nominal value and nominal acceleration is stored in a memory. An actual value of the vehicle operating parameter is determined during a current vehicle operating condition. A vehicle acceleration corresponding to the actual value of the vehicle operating parameter is measured. The road grade of the current driven road is estimated as a function of a comparison between the measured acceleration value and the nominal acceleration that would be expected for the actual value of the vehicle operating parameter.

Abstract: Methods, systems, and apparatus for inducing fractures in a subterranean formation and more particularly methods and apparatus to place a first fracture with a first orientation in a formation followed by a second fracture with a second angular orientation in the formation are disclosed. The first and second fractures are initiated at about a fracturing location. The initiation of the first fracture is characterized by a first orientation line. The first fracture temporarily alters a stress field in the subterranean formation. The initiation of the second fracture is characterized by a second orientation line. The first orientation line and the second orientation line have an angular disposition to each other.

Abstract: An apparatus and method process optical coherence tomography (OCT) imaging data from a sample. The method includes using a magnitude spectrum and an estimated phase term of a complex spatial Fourier transform of a complex intermediate function to generate an estimated complex spatial Fourier transform. The method further includes calculating an inverse Fourier transform of the estimated complex spatial Fourier transform and calculating an estimated intermediate function by applying at least one constraint to the inverse Fourier transform. The apparatus includes a partially reflective element configured to reflect a first portion of light and to allow a second portion of light to propagate through the partially reflective element and to reflect from the sample. The apparatus further includes a detector that measures the OCT power spectrum in response to the first and second portions of light.

Abstract: Removable memory card handling for handheld field maintenance devices is provided. In one aspect, a memory card is attached to an extension tab that is larger than the card to facilitate handling and provide a larger printable surface than the card. In another aspect, a removable memory module includes a memory card permanently affixed therein. The removable module includes a locking mechanism to lock the module into the tool to maintain the environmental rating of the tool.

Abstract: Embodiments of systems, apparatuses, and methods for energy efficiency and energy conservation including enhanced temperature based voltage control are described. In one embodiment, an apparatus includes a processor and a controller coupled with the processor. In one embodiment, the controller receives a temperature measurement corresponding to a current temperature of the processor. In one embodiment, the controller further determines an adjustment to a voltage being applied to the processor based at least in part on the temperature measurement and a plurality of internal limits of the processor, wherein the determined adjustment to the voltage is based on an inverse temperature dependence relationship between at least one of an operating frequency and a voltage of the processor, and temperature. In one embodiment, the controller provides the determined adjustment to the voltage to a voltage regulator interface.

Abstract: A computer implemented method, computer program product and computer system for sensor selection. The computer system can run the computer program to execute the method by dividing a two-dimensional area into cells, wherein the cells are arranged in a grid; receiving a selection trigger for a subset of cells of the grid, wherein at least one cell of the subset has at least one sensor and the at least one cell has a sampling frequency associated; determining a set of constraints for the at least one sensor; selecting the at least one sensor if the at least one sensor complies with the set of constraints; and calculating a sampling frequency of the at least one sensor dependent on the sampling frequency of the at least one cell.

Abstract: Temperature compensation is applied to correct for temperature mismatch between a reference chamber and a disposable chamber in a pneumatic pumping system for dialysis fluid for peritoneal dialysis. The mismatch creates an error in the calculation of pumping volume of dialysate fluid. Applying a correction for the temperature mismatch helps to more precisely control the volume of dialysate that is metered to the patient. Also disclosed are ways to keep temperatures constant and to use temperature sensors to accurately measure the temperatures of the chambers. In other aspects, the temperature of the dialysate fluid itself may be measured and used to apply a correction to the volume of fluid that is pumped to the patient.